Categories
Chromosome Mapping Tools

Distinct segment generator

As announced last month in the newsletter, the new distinct segment generator tool allows you to amalgamate a set of segments that more than one family member shares with a specific match. The tool will then output just the distinct segments, with the centimorgans (cMs) recalculated.

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Chromosome Mapping Inferred Chromosome Mapping Tools

A new feature in the inferred segments generator

Launched in late 2020, the inferred segments generator helps users calculate the segments they can infer from the DNA their close relatives share with others. This can be a confusing concept. I recently added a small additional feature to the tool that can help you infer segments from a grandparent.

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Tools WATO

Generate a tree from the Shared cM Tool

There’s a new feature in the Shared cM Project tool. You can now view the list of potential relationships for a specific number of cM shared in a tree format. Here are some notes on how this new feature works.

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Categories
Chromosome Mapping Tools

Common segment generator

I finally DNA-tested my children and got the results recently. This has been fascinating and I’m sure I’ll be writing more about it in the coming months. While working to interpret their tests, I’ve created the common segment generator.

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New Features Tools WATO

Recent updates: most distant common ancestors and more

I get a lot of correspondence and feedback from users of DNA Painter, which I’m very grateful for. In many cases this feedback helps me to make important improvements. I’m announcing two recent updates here, including the addition of most distant common ancestors to the shared cM tool. Shared cM Tool One key question in

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Categories
Chromosome Mapping Inferred Chromosome Mapping Tips Tools

More tips for inferred chromosome mapping

In this follow-up article I discuss inferred chromosome mapping in more detail, also introducing a new tool I’ve created to make the process easier.

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Categories
Tips Tools

Estimating cMs for a segment of DNA

This article introduces a simple new tool for calculating the number of cMs in a segment of DNA

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